Blackboard-eraser cleaner



March 8 1927. 1,619,899

. L, H. WARD BLAGKBOARD ERASER CLEANER Filed Deo. 28, 1925 Inventor @@Wmm l Attorney Lil Patented Mar. S, 1927.

S TA1? ES inane fearuurI rei-ce LEONORA. H.IWALRD, OIE' WEATHERFORD; OKLAHOM.

. f Application .filed December The present inventionrelates to a highly novel yet simple device for facilitating'the cleaning ofblacl board erasers.

.One of the important objects of thevpres- Vent invention is to providea device of the above mentionedcharacter which Will enable black board'erasers to be cleaned in an expeditious. and sanitary manner,

A, further object is to provide a device of the above mentioned character which includes agrating' over which is adapted to be recip .rocated theerasers to be cleaned, a holder be- Iing` provided forthe eras-ers for clamping` a .number of the erasers .so as to facilitate thev cleaning` of severall erascrs at one time, the cleaning of the .erasersbeing' effected by rubbing the same across the `grating.

A still :further object Vis to provide a device of thefabove mentioned character which is simple. in construction, inexpensive, i strong, and durable and further Well` adapted to the purpose for which it is designed.

Otherobjects and advantages ofthe inven tion will become Iapparent during' the course of the following description taken in connection With the accompanying'- drawing'.

In the accompanying drawing;` forming; a part ofthis application and in which` like numerals designate like parts throughout the several vievvs:

` -lligure l is a top plan` view of the device embodying' my invention shoiv-ingvthe manner in which the same is supported; on the outside of a Window,

:Figure 2 isa transverse section taken approximately on line 2-2 of Fig-ure 1, and

Figure 3 is a side elevation of the device showing the frame supportedkwithin aldust collecting receptacle` the latter being shown in section. Y

In the drawing wherein .for the purpose of illustration isshoivn the preferred embodiment of my invention, the numeral v1 designates a substantially rectangular shaped frame, and extending over the top thereof is the grat-ing' 2 which is preferably formed of ivire mesh material. The edges of the grating' are secured to the top of the frame at the sides and ends thereof by means of the strips shown at 8.

For the purpose of preventing any pos` sibility of the grating' 2 sagging, there are provided strips i Which are constructed of flat metal, the same extending longitudinally of the frame, directly beneath thc grating,

28, 1925. Serial NO. 78,039.

the ends of the strips being disposed downvvardly and secured between the inner vfaces of the respective ends of the frame 1, as illustrated at 5, With reference more particularly to Figure 2. I

A pair of longitudinally extendingl guide rods .6 are disposed4 adjacentfthe respective sides ofv the frame", the respective ends of `each of the guide rods being disposed dovvnwardly as illustrated at 7 and being secured `to the respective ends of theV frame 1 in any suitable manner so that the guide rods extend above the grating inspaced relation thereto.

The eraservholdiug means comprises the pair of complementary flattened bars orv plates 8 and 9, the same being provided adjacent their respective endsV with suitable openings to accommodate the "respective guide rods 6 whereby said bars are adapted for slidable movement onthe rods across the top of the grating 2.

A suitable ,cover o'r lid 12 having-depend ing` flanges formed at its edges isV placed .over lthe back of the erasers.A 'Suitable 'clamping bolts extend through registering` openings provided therefor' inA the Vbars whereby the bars Will engage the respective sides of the'depending'flanges` formed onthe cover or lid 12 andthereby clamp the cover therebetween when the ivingnuts` 11 are -threaded on the threaded ends ofthe bolts and are turned in one direction. It is of course understood that the heads of the bolts engagethe outer side of, the bar 8. "i L The eraser holding means is of such siz as to accommodate a number of erasers, and as is shown more `clearly in Figure 2, four erasers are placedbetween the bars.

A suitablevihandle 13 is associated :With the li-dor cover 12, and-provides a means whereby the eraser carrying member and the erasers supported therein may be reciprocated across the grating so that the bottoms of the several erasers will' rub across the grating, and as a result the crayon dust will be removed from the erasers.

When black board erasers are cleaned in a room, in order to prevent the crayon dust escaping into the air in the room, a suitable dust collector, such as is shown at 14; is provided, the same being of such construction as to enable the frame 1 to fit snugly therein and reston the bottom thereof.

Thus the crayon dust which is shaken out from the erasers will be collected within the pan 14, thereby enabling black board erasers to be cleaned in a sanitary manner.

In order that the device may be used for cleaning bla-ck board erasers on the outside of a window, there is provided the supporting frame l5, the saine extending outwardly from the window sill in a horizontal position, the inner portion of said supporting faune being secured to the window sill as at 16. lIhe frame l of the black board cleaning device is adapted to extend transversely across the supporting frame, and for the purpose of preventinghthe displacement of the device from the supporting frame, there is provided the pivoted catches 17 on the sides of the frame l, the same being adapted to engage the respective sides of the supporting frame. rIhe catches which are secured on the forward sides of the frame l will cooperate with the forward end of the supporting frame l5 to prevent the outward sliding movement of the fra-me l.

The provision of a black board eraser cleaner of the above mentioned character will enable a number of erasers to be cleaned at one time and furthermore in an expeditious manner. The simplicity of my device Yfurthermore enables the several parts to be readily'set up in position for use, and will furthermore be inexpensive in its construction, yet strong and durable.

lVhile I have shown the preferred embodiment of my invention it is to be understood that minor changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention and the scope of the appended claims. V n

Having thus described the invent-ion, what I claim as new is l. A device for cleaning black board erasers comprising a substantially rectangular frame, a grating supported thereon, a pair of longitudinallyv extending guide rods supported at their respective ends on the ends of the frame adjacent the sides of the latter, said guide rods being spaced above the grating, and eraser holding means adapted for reclprocatory movement across the grating, said means including a pair of spaced bars, the ends thereof being provided with openings whereby said bars are adapted for slidable movement on the guide rods, adjusting' bolts associated with the bars, the bottoms of the erasers being adapted to rub across the grating when the eraser holding means is actuated.

9i. A device for cleaning black board 4erascrs coniprising a substantially rectanguwith openings whereby said bars are adapted for slidable movement on the guide rods, adjusting bolts associated with the bars, the bottoms of the erasers being adapted to rub across the grating when the eraser holding means is actuated, a cover for the backs of the erasers placed in the holding means, and a handle on the top of the cover.

3. A device for cleaning blackboard erasers comprising a substantially rectangular frame, agi-ating supported thereon, a pair of longitudinally extending guide rods supported at their respective ends on the ends of the franie adjacent the sides of the latter, said guide rods being spaced above the grating.- and eraser holding means adapted for reciprocatory movement across the grating, said means comprising a cover having depending flanges formed Aon its edges, said cover being placed over the bach of the erasers. -a handle on the top of the cover, and a pair of spaced bars, the ends thereof being provided with openings whereby the bars are adapted for slidable movement on the guide rods, and adjusting looltsassociated with vthe bars, said cover being clamped between said bars, the bottoms of the erasers being adapted to rub across the grating when the eraser` holding means is actuated.

In testimony whereof I affix mv signature.

LnoNonA nf wenn, 

